Move searchTerm from props drilling to zustand store for cleaner
architecture. Remove unnecessary controlled/uncontrolled pattern
and unused debounce logic since search is pure frontend filtering.
- Add fileTreeSearchTerm state to file-tree-slice
- Remove useState and props from main.tsx
- Simplify sidebar-search-add.tsx to read/write store directly
- Add empty state UI with reset filter button
Add search functionality to skill sidebar using react-arborist's built-in
searchTerm and searchMatch props. Search input is debounced at 300ms and
filters tree nodes by name (case-insensitive). Also add success toast for
rename operations.
Move SkillEditorProvider from SkillMain to WorkflowAppWrapper so that
store state persists across view switches between Graph and Skill views.
Also add URL query state for view type using nuqs.
Implement MVP features for skill editor based on design doc:
- Add Zustand store with Tab, FileTree, and Dirty slices
- Rewrite file tree using react-arborist for virtual scrolling
- Implement Tab↔FileTree sync with auto-reveal on tab activation
- Add upload functionality (new folder, upload file)
- Implement Monaco editor with dirty state tracking and Ctrl+S save
- Add i18n translations (en-US and zh-Hans)
